title: [First flush effects of storm events of Baoxiang River in Lake Dianchi Watershed].
abstract: To understand riverine process of non-point source effectively, first flush effects of storm events were investigated at Baoxiang River of Lake Dianchi Watershed. Three sampling stations were selected along Baoxiang River for observing the flow rate and pollutant concentrations of the first three storm events from June 2009 to August 2009. Net discharged volume, net discharged loading, and net event mean concentration (EMC(n)) were proposed with their calculation methods. According to the analysis of three storm events at three stations, the following results colcd be extracted: (1) the larger the percent of impervious land and population density were, the higher EMC(n) of TSS, TN, TP, permanganate index and their cumulative curves [M(V)] were along the river; (2) TSS, TP loadings as well as their M (V) were positively correlated to the storm intensity, while TN and permanganate index loadings were consistent with the total rainfall of each storm event, where the percent of NO3(-) -N in total nitrogen decreased gradually when the number of storm events increased; (3) compared to tradition EMC, EMC(n) was proven to be a better indicator to accurately uncover and magnify the differences in first flush effects of storm events among different stations or storm events.
authors.affiliation: Laboratory of Water and Sediment Sciences, Ministry of Education, College of Environmental Sciences and Engineering, Peking University, Beijing 100871, China. hcguo@pku.edu.cn
authors.forename: Huai-Cheng
authors.initials: HC
authors.lastname: Guo
authors.forename: Nan
authors.initials: N
authors.lastname: Xiang
authors.forename: Feng
authors.initials: F
authors.lastname: Zhou
authors.forename: Yong-Hua
authors.initials: YH
authors.lastname: Wang
authors.forename: Fa-Rong
authors.initials: FR
authors.lastname: Li
authors.forename: Xiang
authors.initials: X
authors.lastname: Zhu
authors.forename: Guo-Zhu
authors.initials: GZ
authors.lastname: Mao
authors.forename: Shu-Xia
authors.initials: SX
authors.lastname: Yu
authors.forename: Na
authors.initials: N
authors.lastname: Li
authors.forename: Hu
authors.initials: H
authors.lastname: Sheng
authors.forename: Yong-Hui
authors.initials: YH
authors.lastname: Yang
authors.forename: Cheng-Jie
authors.initials: CJ
authors.lastname: He
authors.forename: Cui-Yu
authors.initials: CY
authors.lastname: Wang
mesh_terms: D002681:China; D004784:Environmental Monitoring; D005068:Eutrophication; D060106:Lakes; D011891:Rain; D045483:Rivers; D014872:Water Movements; D014874:Water Pollutants, Chemical / Q000032:analysis*
chemical_list: D014874:Water Pollutants, Chemical